（长安大学建筑工程学院， 西安 710061）

［摘要］为提高混凝土剪力墙的承载力和变形能力，可以在剪力墙截面两端边缘约束构件内设置型钢。根据8个型钢混凝土剪力墙弯曲破坏的试验结果，以开裂点、屈服点、峰值点和极限点为特征点，将这种剪力墙截面的弯矩-曲率骨架曲线简化为四线型；基于平截面假定并考虑约束边缘构件及型钢的影响，提出了剪力墙开裂弯矩和曲率、屈服弯矩和曲率、峰值弯矩和曲率以及极限弯矩和曲率的表达式。研究结果表明，基于平截面假定所得的开裂弯矩和曲率、屈服弯矩和曲率及极限弯矩和曲率的计算值均与试验值吻合较好。

［关键词］型钢混凝土剪力墙； 约束边缘构件； 弯矩-曲率； 骨架曲线； 极限弯矩

中图分类号： TU973.17    文献标识码： A    文章编号： 1002-848X(2015)S2-0451-05

Moment-curvature relationship analysis of steel reinforcement concrete shear wall

Que Ang, Ma Kaize, Liu Chao

(School of Civil Engineering, Chang′an University, Xi′an 710061， China)

Abstract： In order to improve the lateral capacity of the reinforcement shear wall, the steel can be encased to the confined end-zones in the both ends of the shear wall cross-section. According to the experimental results of 8 high steel reinforcement concrete shear walls flexural failure, the moment-curvature skeleton curve of this shear wall cross-section is simplified as four linear through cracking point, yield point, peak point and ultimate point. Based on the plane-section assumption, the expressions of cracking bending moment and curvature, yield moment and curvature, the peak moment and curvature, the ultimate moment and curvature are derived. The effects of confined end-zones and steel effect on the moment and curvature are taken into account. The analysis results show that, the calculated values of the cracking moment and curvature, as well as the yield moment and curvature, which are based on the plane-section assumption, are in good consistent with the experimental data. Similarly, the calculated values of the ultimate moment and curvature obtained according to the plane-section assumption and to consider the impact of confined end-zones are also in good accordance with the experimental data.

Keywords: steel reinforcement concrete shear wall; confined end-zones; moment-curvature relationship; skeleton curve; ultimate moment

作者简介：阙昂，硕士研究生，Email:735297984@qq.com。